Cyclic di-GMP sodium salt is widely used in research related to bacterial signaling and biofilm formation. It plays a crucial role in studying the regulatory mechanisms of bacterial behavior, including motility, virulence, and the transition between planktonic and biofilm states. Researchers utilize it to understand how bacteria adapt to environmental changes and develop strategies to control bacterial infections. It is also employed in synthetic biology to engineer bacterial systems for industrial applications, such as bioremediation and biofuel production. Additionally, it serves as a tool in drug discovery to identify potential inhibitors targeting bacterial signaling pathways, aiding in the development of novel antimicrobial therapies.